9.104 GET_PROCESS_LIST

Note: Built-In Function Rules     Usage Options

Retrieves a list of processes and their descriptions from the LANSA internal database and returns them to the calling RDML function in a variable length, working list

This is a Specialized Built-In Function for use in a Development Environment only.

Arguments

No Type Req/ Opt Description Min Len Max Len Min Dec Max Dec 1 A Req Positioning process value. The returned list starts with the first process from the dictionary whose name is greater than the value passed in this argument. 1 10

Return Values

No Type Req/ Opt Description Min Len Max Len Min Dec Max Dec 1 L Req Working list to contain Process information. List must not be more than: 32767 entries in Windows 9999 entries on IBM i. The calling RDML function must provide a working list with an aggregate entry length of exactly 60 bytes. Each returned list entry is formatted as follows: From - To   Description 1 - 10   Process name 11 - 50   Description 51 - 60   <<future expansion>> 60 60     2 A Opt Last process in returned list Typically this value is used as the positioning argument on a subsequent calls to this Built-In Function. 1 10     3 A Opt Return code. OK = list returned partially or completely filled with process details. No more processes exist beyond those returned in the list. OV = list returned completely filled, but more processes than could fit in the list exist. Typically used to indicate "more" processes in page at a time style list displays. NR = list was returned empty. Last process in the list is returned as blanks. 2 2

Example

A program can be created, using this function, to compile a series of processes in an overnight job.

FUNCTION OPTIONS(*DIRECT)

DEFINE FIELD(#STARTPRC) REFFLD(#PROCESS) DESC('Start Search with:')

DEFINE FIELD(#LASTPRC) REFFLD(#PROCESS) DESC('Last retrieved:')

DEFINE FIELD(#SPARE) REFFLD(#PROCESS)

OVERRIDE FIELD(#STD_INSTR) COLHDG('Name (Description)')

OVERRIDE FIELD(#STD_CMPAR) DESC('Return Code (OV,OK or NR)')

DEF_LIST NAME(#PRCLST) FIELDS(#PROCESS #PARTDESC #SPARE) TYPE(*WORKING) ENTRYS(14)

DEF_LIST NAME(#BRWLST) FIELDS((#STD_INSTR *NOID))

*

CHANGE FIELD(#LASTPRC #STD_CMPAR) TO(*BLANKS)

*

BEGIN_LOOP

REQUEST FIELDS(#STARTPRC #LASTPRC (#STD_CMPAR *OUT)) IDENTIFY(*DESC) BROWSELIST(#BRWLST)

IF COND('#lastprc *ne #blanks')

CHANGE FIELD(#STARTPRC) TO(#lastprc)

ENDIF

CLR_LIST NAMED(#PRCLST)

USE BUILTIN(GET_PROCESS_LIST) WITH_ARGS(#STARTPRC) TO_GET(#PRCLST #LASTPRC #STD_CMPAR)

CASE OF_FIELD(#STD_CMPAR)

WHEN VALUE_IS('= OV')

CLR_LIST NAMED(#BRWLST)

SELECTLIST NAMED(#PRCLST)

USE BUILTIN(BCONCAT) WITH_ARGS(#PROCESS '(' #PARTDESC ')') TO_GET(#STD_INSTR)

ADD_ENTRY TO_LIST(#BRWLST)

ENDSELECT

WHEN VALUE_IS('= OK')

MESSAGE MSGTXT('No more matching process names')

CHANGE FIELD(#LASTPRC) TO(#BLANKS)

WHEN VALUE_IS('= ER')

MESSAGE MSGTXT('No process names matching search')

ENDCASE

END_LOOP